Home / 11,879.40-16,393.10-6,574.11

Finding the Fourth Proportional to 11,879.40, 16,393.10 and 6,574.11

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Solution

The fourth proportional to 11,879.40, 16,393.10 and 6,574.11 is: 9,072.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,879.40 : 16,393.10 = 6,574.11 : x
  2. Step 2: Convert to fraction form
    11,879.40/16,393.10 = 6,574.11/x
  3. Step 3: Cross multiply
    11,879.40x = 16,393.10 × 6,574.11
  4. Step 4: Simplify right side
    11,879.40x = 107,770,042.64
  5. Step 5: Solve for x
    x = 107,770,042.64/11,879.40
  6. Step 6: Final answer
    x = 9,072.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.